The connection it provided between the massive population centers of Brooklyn and Manhattan changed the course of New York City forever. In 1898, the city of Brooklyn formally merged with New York City, Staten Island and a few farm towns, forming Greater New York.
From what I know ethnocentrism means someone who thinks their culture is higher than another therefore I would go with A.
A published false statement that is damaging to a person's reputation.
The last one, world war ll